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Query engine

Bases: QueryComponent

Query engine component.

Parameters:

Name Type Description Default
query_engine BaseQueryEngine

Query engine

 required
Source code in llama-index-core/llama_index/core/base/base_query_engine.py 
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class QueryEngineComponent(QueryComponent):
    """Query engine component."""

    model_config = ConfigDict(arbitrary_types_allowed=True)
    query_engine: SerializeAsAny[BaseQueryEngine] = Field(
        ..., description="Query engine"
    )

    def set_callback_manager(self, callback_manager: CallbackManager) -> None:
        """Set callback manager."""
        self.query_engine.callback_manager = callback_manager

    def _validate_component_inputs(self, input: Dict[str, Any]) -> Dict[str, Any]:
        """Validate component inputs during run_component."""
        # make sure input is a string
        input["input"] = validate_and_convert_stringable(input["input"])
        return input

    def _run_component(self, **kwargs: Any) -> Any:
        """Run component."""
        output = self.query_engine.query(kwargs["input"])
        return {"output": output}

    async def _arun_component(self, **kwargs: Any) -> Any:
        """Run component."""
        output = await self.query_engine.aquery(kwargs["input"])
        return {"output": output}

    @property
    def input_keys(self) -> InputKeys:
        """Input keys."""
        return InputKeys.from_keys({"input"})

    @property
    def output_keys(self) -> OutputKeys:
        """Output keys."""
        return OutputKeys.from_keys({"output"})

input_keys property #

input_keys: InputKeys

Input keys.

output_keys property #

output_keys: OutputKeys

Output keys.

set_callback_manager #

set_callback_manager(callback_manager: CallbackManager) -> None

Set callback manager.

Source code in llama-index-core/llama_index/core/base/base_query_engine.py 
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def set_callback_manager(self, callback_manager: CallbackManager) -> None:
    """Set callback manager."""
    self.query_engine.callback_manager = callback_manager